Planning to build new computer, decided on motherboard and CPU, need reccomendations

Hello
I am planning to build a new computer these holidays, for gaming and perhaps slight overclocking. I am on a rather tight budget, but will compromise "the best" for a decent price/quality. Main goals are a decent gaming computer with ample upgrading opportunity for the future.......
After some research I decided on my choices for the motherboard and CPU, as follows:

Now I am having trouble deciding on a case for these components, I figure a decent tower sized ATX model case, with a decent power supply upwards of 500W. What should I look out for and what would be reccomended to go with these components?

I have not baught these parts yet, so any opinions or reccomendations on motherboard/CPU are welcome!!
Also, motherboard price = $195 AUD
and CPU price = $369 AUD
total: $564 --- not bad??